| Name | Meaning | Gender | Origin |
|---|
| Nancy | full of grace | Female | English |
| Nellie | the bright one | Female | English |
| Nermal | | Unisex | |
| Nestle | | Unisex | Hebrew |
| Nicky | Abbreviation of Nicholas. Mythological Nike was Greek goddess of victory and root origin of Nicholas.
| Female | |
| Nicole | Victory of the people
| Female | |
| Nightshade | | Unisex | Hebrew |
| Nipper | A small boy | Unisex | |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Ophelia | Serpentine
| Female | Greek |
| Opie | | Unisex | |
| Orca | | Unisex | |
| Orchid | | Female | |
| Other | | Unisex | Hebrew |
| Outlaw | A rebel or fugitive from the law. | Unisex | |
| Pamela | honeyed | Female | English |
| Panama | | Female | Hebrew |
| Pandora | talented one | Female | Greek |
| Panthor | | Unisex | |
| Paprika | Spicy powder made from sweet red peppers. | Unisex | |
| Paquita | Free
| Female | Spanish |
| Passion | Powerful emotions, boundless enthusiasm. | Unisex | |
| Pavarotti | | Unisex | |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |